Globe holder for illuminating fixtures



2 Sheets-Sheet ATTORNEYS.

April 23, 1929. o. c. F. WlLCKE GLOBE HOLDER FOR ILLUMINATING FIXTURESFiled May 16, 1927 rill/ll I I i flfii; L 3.11;]...-

April 23, 1929. o. c. F. WILCKE GLOBE HOLDER FOR ILLUMINATING FIXTURESFiled May 16, 1927 2 Sheets-Sheet I V EN TOR.

ATTORNEYS.

Patented Apr. 23, 1929.

UNITED STATES PATENT OFFIC OTTO CARL FRIEDRICH WIL'CK E, OF DAYTON,OHIO, ASSIGNOR T THE DAYTON MANU- i FAOTURING COMPANY, OF DAYTON, OHIO,A CORPORATION OF OHIO.

GLOBE HOLDER FOR ILL'UMINATING FIXTURES Application filed. May 16,

a holder forming a part ol the lixlure with improvements whereby a shademay be insorted into the holder and held leinpi'ira r1 by a yieldinggripper while the holder beii'ig screwed'or adjusted into final positionto cause the gripper to permanently and firmly hold the shade.

This object is or 'riod out by means of a gripping device, orcilerablymade in sec-- tions which normally extends somewhat a :ross and withinthe circular opening; ol the holder into which the shade is to beplaced, sothat the gripper will more rer'idily ltlh'l) hold of the neckol the shade and secure the shade pending the linal adjustment of lheluilder; and which same'pjripping device will. then perinammlly securelho shade.

in the aceoi'np'anyin51 drawings,

Figure l is a side elevation ol' my unproved shade holder with aconventional electric light shade held thereby;

l igure 2 an enlarged view in vertical section showing; the position olthe parts when the yielding gripper in normal position and. eidendinpslightly within and across the borders of the opening in 'lhe holderenough to temporarily hold the shade;

Figure 3 a like view showing the parls in their final position after theholder has been scrmved home and the yiehling;- gllpl llil." has been.loreed into the groove or noel: ol. the shade; I

Figure 4 a plan view of lhe holder and the yielding gripper, 'lhe latterin normal position when it extends well within the opening in theholder;

Figure 5 is an inverted plan view of the holder looking at the bottomthereof and showing the gripper extending somewhat within the opening ofthe holder;

Figure 6 is a detached view of the gripper showing its several sectionsand the ring on which the sections are strung.

Referring to the drawings, the numeral. 1 indicates an electric lightfixture oil? any conventional type. This fixture has a lower extension.indicated at 2, and provided with a screw thread on its outside. Thelower margin of this extension is beveled as seen at 3 for a purposepresently to appear.

The numeral 4 indicates the outer shell ol the 1927. Serial No. 191,648.

sheet inelalspun up into any desired design.

This shell has soldered or otherwise fitted within. it a screw threadedannulus 5 having a groove 6 Within which is sprung a wire ring to form ashoulder or stop to prevent the annulus from being entirely SCI'QWQLloil ol the extension 2 of the fixture. This wire ring-like stop isinserted through the opening 7 withinthe shell of the holder 4 alterannulus has been screwed on 'l'he threaded extension 2 of the fixture.

Thus it will be seen that by rotating the holder 4-, it will be adjustedup or down with reference to the fixture by reasrm of its threadedmounting on the extension 2 of the fixture. l

The holder at its lower end is turned inward or formed with a ledge 8constituting a space 9 within the holder and between the ledge and thelower ends of the annulus and extension 2. On this lodge is placed theyielding gripper, consisting in the present embodiment oi a plurality,preferably "four, oil coil, springs 10. These springs are strui'lp; on awire ring 11 over which are bent hooks or clips 12 struck up from orlori'ned with the ledge 8. See Figure 2.. These clips seeuro the wirering and thereby also secure the $.p1' ngs forming the gripper, yetpermitt ng the springs to have freedom of 1110K)- inent radially as wellas longitudinally. The

natural temflency oi the spring sections is lo distend, in doing whichtheir inner portions make. a short cut across the opening within thelodge 8, and thus project themselves into the space within the inner inagin of the ledge 8. This is clearly shoim in Figures and 5. I i Thisextension of the spring gripper sections within the opening in the ledgeenables them/to make immediate contact with the shade when the latter isinserted in said opening, see Figure 2, where it will be seen that thehead 18 on the neck of the Shade 141- has been snapped or pushed pastthe grippersections and they have sprung back partly into the groovebeneath the bead and are ready to be forced finally further inward intopressing contact with the shade within the groove. See F igure 3. I

In this latter figure, the parts are shown with the holder l screwedupward on the extension 2 of the fixture, so as to cause the bevel 3 onthe fixture to force the spring gripper inward and into the groove 15 ofthe neck of the globe. In this way the shade has become permanently andstrongly attached to the holder where it will remain in any situation inwhich the fixture is used, such as on railway cars. f

it will be seen from the foregoing that this invention provides for theeasy and ready insertion of the shade into the holder and of the holdingofthe shade by the au tomatic snapping of the spring sections of thegripper far enough under the bead of the shade to maint the shade safelyin place in o I 1 l 1 pending the screwing or the holder upward g on thefixture as above described. i the shade is perfectly safe tronr'tallingafter it snapped into the holder, the person maliing the attachment isfree to remove his hand from the shade and to use the same handtorserewing up the holder. Again, when the shade is to be removed, theperson can first screw downward the'holder without tear of the shadedropping. Then he can take hold of the shade with'the same hand he hasjust used in screwing down the holder and readily withdraw the shade.

It is further to be observed that the gripper herein set forth isadapted for use Y ith difi'erent sized holders, so that the grippers canbe manufactured and applied to VHUOHS' f manufactured and utilizedtom-ere oil the manuiacturer sizes of hol by dii'ler'L ot the L pcr.

Thus the advantages and features of utility of this improved, shadeholder are mani-- fest.

It will be understood that I desire to com prehend within my inventionsuch modihcations as may be necessary to adapt it to Varying conditionsand uses.

Having thus itully. described my invention what I claim as new anddesire to secure by Letters Patent, is

1. In a shade holder, the combination with a holder proper havingits'lower end formed into a ledge having clips,cfa grippercomposed of a'alurality of helical spring sections adapted torest on the ledge and toproeet t ieinselves inward from the margins of the opening within theledge, and a retaining device for the spring sections in the nature of awire ring and clips adapted to enand loosely hold the spring sections.

2. In a shade holder, the combination with a fixture having a threadedextension, a holder proper having an interior thread adapted to bescrewed upon the extension and having also a l dge at its lower end witha large opening within the ledge for the insertion oi a shade, and aspring gripper composed of a plurality of sections made each of ahelical spring, the springs being adapted to normally positionthemselves within said opening, and means on the ledge engaging thespring to loosely retain them in position, the interior of the holderproper being adapt-ed when screwed upward on the fixture to force thespring sections further into the opening and to sent them in the grooveof the neck of the, shade.

3. In shade holder, the combination with a fixture and a holder properscrewed thereon, of a spr ng gripper made in sections and looselymounted within the holder and adapted normally to extend somewhat withinthe opening in the bottom of the holder, whereby a shade may be insertedpast and be temporarily held by the spring sections to hold the shadewhile the holder proper is being screwed up on the extension, an innerportion of the holder being adapted to then force the spring sectionspermanently into the neck of the shade, and means on the holder forpositively holdingthe gripper, in position in the holder.

4. In a shade holder, the combination with a holder having lower endformed into a edge, a grip member composed of a pluality of helicalspring sections adapted to on the ledge and to project inwardly pm themargin of the openings formed by

